Boat hull



FIG. 1 is a top plan view of a boat hull showing my new design;

FIG. 2 is a right side elevational view thereof, the left side being a mirror image of that shown;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom, front perspective view thereof;

FIG. 5 is a rear elevational view thereof. 

The ornamental design for a boat hull, as shown and described. 